-1.17% is the change from 257 to 254
Calculation steps:
[( 254 - 257 ) ÷ 257] x 100 = -1.17%
Formula
Percentage change = [(254 - 257) / 257] x 100
Subtract the new number by the original number
254 - 257 = -3
-3 ÷ 257 = -0.011673151750972763
-0.011673151750972763 x 100 = -1.17%